<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>

    <div id="app">
        <ul>
            <li v-for="(user,index) in users" @key="user.name" v-if="user.gender=='女'">
                <!-- 1、显示user信息：v-for="item in items" -->
                当前索引：{{index}} ==> {{user.name}} ==> {{user.gender}} ==> {{user.age}} <br>
                <!-- 2、获取数组下标：v-for="(item,index) in items" -->
                <!-- 3、遍历对象：
                        v-for="value in object"
                        v-for="(value,key) in object"
                        v-for="(value,key,index) in object" 
                -->
                当前对象：
                <span v-for=" (k,v) in user"> {{k}}=={{v}};></span>
                <!-- 4、遍历的时候都加上:key来区分不同数据，提高vue渲染效率 -->
            </li>
        </ul>

        <ul>
            <li v-for="(num,index) in nums" :key="index">{{num}}</li>
        </ul>
    </div>

    <script src="../node_modules/vue/dist/vue.js"></script>

    <script>         
        let app = new Vue({
            el: "#app",
            data: {
                users: [{ name: '柳岩', gender: '女', age: 21 },
                { name: '张三', gender: '男', age: 18 },
                { name: '范冰冰', gender: '女', age: 24 },
                { name: '刘亦菲', gender: '女', age: 18 },
                { name: '古力娜扎', gender: '女', age: 25 }],
                nums: [1, 2, 3, 4, 4]
            },
        })
    </script>
</body>

</html>